Current Melco EMT16X machines use a Stabilizer to hold Thread Cones in place on the machine's Thread Tree. These are also available as an upgrade kit for Bravo, XTS, XT, and earlier EMT16 models.
Other machine models utilize a Thread Tree Clover which is available as a full kit or as individual parts.
Below are the instructions to install the Thread Tree Clovers. Note that these clovers can have a tight fit onto the thread tree guide tubes. Some effort may be required when installing them.
Large Clover PN# 33671-01 - 16pc Kit PN# 33820
Small Clover PN# 33813-01 - 16pc Kit PN# 33821
Press clover on to thread tree guide tube. Note, some effort may be required.
Slide clover down thread tree guide tube approximately 1 inch (25mm).
Hold down clover while installing thread cone.
To remove clover, apply pressure to white plastic thread tube tip with a 4mm Allen wrench while pushing up on clover.